I have a 2006 Ovation GX w/ G1000. I recently wanted to add IFR charts database which reside on removable SD cards, 1 in the PFD and 1 in the MFD. I found out that I have the Garmin -41 SD cards, which do not have enough capacity (only @ 120 MB) to load all the databases I was looking at, (I was considering the Pilot Pak which has Safe Taxi, and Airport directory and other stuff as well). In order to do this I would have to buy new data cards from Garmin - They have a -42 SD card that holds 2 GB and a -43 that holds 4GB. They would gladly sell them to me for $525 each. That is >$1050 for SD cards that can be bought for @ $10 at any computer or Camera store.
My question is even though they have a TSO FAA approved sticker on them, Is there any real difference? The Garmin guy I talked to suggested (but wouldn't say outright) that there was no difference, that is unless I got Ramp checked. Does anyone know what difference there may be or has used other SD cards for this purpose?
Or does anyone have any advice on where to get reasonably priced FAA approved SD cards?
Thanks